.tx-c{text-align: center;}
.float_l{float: left;}
.float_r{float: right;}
.left{float: left;}
.right{float: right;}
.ut-s { text-overflow: ellipsis; overflow: hidden; white-space: nowrap; outline: 0 !important}
.c_blu{background-color: #2fa4e7;}
.uf16{font-size:16px;}
.uf18{font-size:18px;}

.up5{ padding:5px;}
.up30{ padding:30px;}
.childdom-box{margin:0;padding: 2% 1% 2% 10%;;background-color:#fff;border: 1px solid #dddddd;border-top:none;}
.knowledgeContent{display:none;}
.chapterContent{display:none;padding:30px;}
